NEVER bank with Nedbank

Our bond registered with Nedbank on 25th of Feb '21. I was offered a slightly lower interest rate in the event that I open Nedbank account. I did undergo the huge effort to open the account, and switched all relevant banking debit orders etc. - MYSELF. Q consultant from Nedbank contacted me to CONFIRM activation of my account, as well as CONFIRMING that my 1st bond instalment will be deducted from my NEDBANK account. Guess what? The Installment was deducted from my FNB account! (Now longer in use). *** is going on Nedbank??? Did I make a mistake by moving my business? I'm still awaiting feedback regarding the adjusted interest rate as per my contract?? I did everything from my side - by the book!! Please join the party? And P.S. Your banking app is absolute 100% ****!!!!